1. Godan verb with 'ru' ending, Intransitive verb

   to be at one's wits' end; to be cornered; to be in a fix; to be in a desperate situation; to be in a pinch; to be in a predicament; to be packed to the hilt

   see 切羽see せっぱ・2

Also written 切羽詰る【せっぱつまる】seppatsumaru